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1SDA055817R1 ABB E2B 1600 PR121/P-LSI 1600 A 4-Pole Withdrawable Air Circuit Breaker
ABB 1SDA055817R1 E2B 1600 PR121/P-LSI is a 1600 A four-pole withdrawable SACE Emax air circuit breaker with a PR121/P-LSI electronic trip unit providing long-time, short-time and instantaneous overcurrent protection.
£11,868.83
Why Choose the ABB E2B 1600 PR121/P-LSI Air Circuit Breaker?
The ABB E2B 1600 PR121/P-LSI, order code 1SDA055817R1, is a robust 1600 A four-pole withdrawable air circuit breaker designed for switching and protection in low-voltage power distribution systems. As part of the ABB SACE Emax series, it combines dependable high-current switching with the PR121/P-LSI electronic overcurrent release for industrial, commercial and infrastructure electrical installations.
The PR121/P-LSI electronic trip unit provides long-time overload, short-time short-circuit and instantaneous short-circuit protection. These electronic protection functions help safeguard cables, busbars and connected equipment while supporting selective coordination between protective devices throughout low-voltage distribution networks.
With a rated current of 1600 A and a four-pole withdrawable configuration, the E2B 1600 is well suited to switchboards where reliable high-current protection and maintainability are required. Its withdrawable construction enables the breaker moving part to be isolated from a compatible fixed part for inspection and servicing, while the four-pole arrangement supports applications requiring switching and protection of four conductors.
Key Advantages
- Heavy-duty 1600 A air circuit breaker for low-voltage power distribution.
- PR121/P-LSI electronic trip unit for dependable overcurrent protection.
- Provides long-time, short-time and instantaneous protection.
- Four-pole withdrawable construction supports serviceability and switchboard maintenance.
- E2B performance class is engineered for demanding power distribution applications.
- Electronic trip technology supports protection coordination and system selectivity.
Key Features
- ABB SACE Emax E2B series.
- 1600 A rated current.
- Four-pole configuration.
- Withdrawable execution.
- PR121/P-LSI R1600 electronic overcurrent release.
- Long-time overload protection.
- Short-time short-circuit protection.
- Instantaneous short-circuit protection.
- Designed for high-current low-voltage switchboards.
- Suitable for coordinated industrial power distribution protection.
Reliable Protection for Low-Voltage Power Distribution
Air circuit breakers such as the ABB SACE Emax E2B provide switching and overcurrent protection for high-current low-voltage distribution circuits. Electronic trip technology continuously monitors current and commands breaker operation when configured overload or short-circuit thresholds are exceeded, helping protect distribution equipment and connected loads.
The PR121/P-LSI release combines long-time overload protection with short-time and instantaneous short-circuit protection. Together with the four-pole withdrawable E2B construction, this makes the 1SDA055817R1 suitable for installations requiring coordinated overcurrent protection together with convenient maintenance and serviceability.
Typical Applications
- Industrial low-voltage switchboards.
- Main power distribution panels.
- Manufacturing and process plants.
- Commercial and infrastructure electrical distribution.
- Transformer secondary distribution systems.
- High-current feeder and distribution circuit protection.
Technical Specifications
| Series | SACE Emax E2B |
|---|---|
| ABB order code | 1SDA055817R1 |
| Product type | Air circuit breaker |
| Rated current | 1600 A |
| Number of poles | 4 |
| Execution | Withdrawable |
| Trip unit | PR121/P-LSI R1600 |
| Protection functions | LSI – long-time, short-time and instantaneous protection |
| Series performance class | E2B |
| Application | Low-voltage power distribution |
Frequently Asked Questions
What is the ABB 1SDA055817R1 used for?
It is a 1600 A four-pole air circuit breaker designed for switching and overcurrent protection in low-voltage power distribution systems.
What is the rated current of the ABB E2B 1600 PR121/P-LSI?
The circuit breaker has a rated current of 1600 A.
What protection functions does the PR121/P-LSI provide?
The PR121/P-LSI electronic release provides long-time overload, short-time short-circuit and instantaneous short-circuit protection.
Is the ABB 1SDA055817R1 fixed or withdrawable?
This model is a four-pole withdrawable air circuit breaker designed for use with a compatible ABB SACE Emax fixed part.
Does the PR121/P-LSI provide earth-fault protection?
No. The LSI configuration provides long-time, short-time and instantaneous overcurrent protection; earth-fault protection is provided by LSIG versions of the trip unit.
Trusted ABB Power Distribution Technology
ABB SACE Emax air circuit breakers are engineered for dependable switching and protection in demanding low-voltage power distribution systems, combining robust construction with electronic overcurrent protection and serviceable withdrawable configurations.
